不稳定煤层综放开采存在问题解析与对策

Problems Analysis and Countermeasures in Sub-level Caving Mining of Unstable Coal Seam

通过对耿村煤矿不稳定煤层综放开采存在问题原因分析,认为工作面片帮、冒顶、瓦斯聚积、煤炭自然等多种灾害的同时存在与局部区域煤厚大,直接顶无法完全充满采空区有直接的关系,并有针对性的提出了解决此类问题的对策。

Through analyzing the problems of sub-level caving mining in Gengcun Coalmine,the authors hold that gob can＇t be filled by immediate roof in local area is the reason of the problems such as rip spalling,roof fall,gas accumulation and coal spontaneous combustion,and put forward the solution of these problems.